student asking question

What's he mean by "by 2026?" Is it different from "until 2026?"

teacher

Native speaker’s answer

Rebecca

The word "by" means 'no later than', showing that there is a strict deadline. "Until" is used to show how long something will go on for. Ex: I need to finish these Q&As by 5pm or else Eunice will be mad at me! Ex: It's 2pm now. You can finish these Q&As until 5pm, so you have 3 hours.

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